Sarah Bramley was in a love triangle with both David Saunders and Michael Lawson

Prosecutor Nick Dry told the court: “Within a short time the defendant ordered a taxi and travelled to her address, which is a five-minute car journey. The prosecution case is that at that time he was armed with a knife.”

Saunders has pleaded guilty to murder.

But he disputes the claim he took the knife to the scene in Darlington, Co Durham, in July.

He says Mr Lawson was carrying the blade which he grabbed during a struggle in the street.

The victim died at the scene from a single stab wound.

Michael Lawson died at the scene from a single stab wound after David Saunders waited for him to leave Sarah’s home.

He said: “I loved her, it was not nice to see that. I felt angry at both of them.”